diff --git a/crates/nsis-fn/Cargo.toml b/crates/nsis-fn/Cargo.toml
index bb7727f..4e71687 100644
--- a/crates/nsis-fn/Cargo.toml
+++ b/crates/nsis-fn/Cargo.toml
@@ -8,6 +8,6 @@ license = "MIT OR Apache-2.0"
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1"
+proc-macro2 = "1.0.81"
 quote = "1"
 syn = { version = "2", features = ["full"] }